EP0248403B1 - Verteiltes Dialogverarbeitungsverfahren in einem komplexen System mit mehreren Arbeitsplätzen und mehreren Gastrechnern und Vorrichtung dafür - Google Patents

Verteiltes Dialogverarbeitungsverfahren in einem komplexen System mit mehreren Arbeitsplätzen und mehreren Gastrechnern und Vorrichtung dafür Download PDF

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Publication number
EP0248403B1
EP0248403B1 EP87107964A EP87107964A EP0248403B1 EP 0248403 B1 EP0248403 B1 EP 0248403B1 EP 87107964 A EP87107964 A EP 87107964A EP 87107964 A EP87107964 A EP 87107964A EP 0248403 B1 EP0248403 B1 EP 0248403B1
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Prior art keywords
processing
work station
server
request
host computer
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French (fr)
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EP0248403A3 (en
EP0248403A2 (de
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Kazuo Masai
Kimitoshi Yamada
Tomihiko Kojima
Ikuo Kimura
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Hitachi Ltd
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Hitachi Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/48—Program initiating; Program switching, e.g. by interrupt
    • G06F9/4806—Task transfer initiation or dispatching
    • G06F9/4843—Task transfer initiation or dispatching by program, e.g. task dispatcher, supervisor, operating system
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/54—Interprogram communication

Definitions

  • the present invention relates to complex systems including intelligent work stations (shortly referred to as IWS's herebelow) and host computers (shortly referred to as hosts herebelow), and it is particularly concerned with a distributed interactive processing method suitable to distribute the load on the hosts to the IWS's in such a system as well as with the means for performing the said method.
  • IWS's intelligent work stations
  • hosts host computers
  • the syntactical check has been effected on the terminal side as described in the JP-A-60-144839.
  • the request itself is analyzed in the virtual address space of a host computer to select a program satisfying the request in the same space.
  • the selected program first arranges the necessary environment, for example, allocates file and effects an OPEN processing thereon, and then executes the requested processing.
  • PROCEEDINGS 1st INTERNATIONAL CONFERENCE ON COMPUTER WORKSTATIONS, San Jose, California, 11th-14th November 1985, pages 198-208, IEEE, New York report on a project for a network of highly autonomous yet cooperating personal computer work stations and shared servers.
  • An important aspect of the said project is to provide processor sharing by creating a pool of compute servers in the network that may be used by the work stations to supplement their computing needs.
  • Some processors are permanently designated to be the compute servers, and in addition, through an advertisement mechanism, any work station may make itself temporarily available for a specific duration of time to be used as a compute server.
  • the main object of the said project is to supplement the computing capability.
  • the gist of the said project demands that the computing environment is decentralised and the network resources are dynamically configured.
  • the work stations are allowed to use the compute servers freely and they may make themselves available to be used as compute servers. Respective work stations designate respective compute servers they will use. The work stations use the compute servers by selecting them from the pool of available compute servers. The computing needs are shared among respective work stations and their own processings are executed by the use of free compute servers. Accordingly, respective work stations transmit the programs to the processors by themselves.
  • IBM TECHNICAL DISCLOSURE BULLETIN vol. 23, no. 5, October 1980, pages 1811-1812 describe a node processor for distributed system control which is designed to be used in a distributed data processing system for connecting a local processor to a communications network to which are connected a number of other independent local processors.
  • the distributed processing system is of a type wherein the different processes or task sets that can be performed by the different local processors are assigned process names and communications are carried on within and between the different local processors by means of messages which are addressed to the different processes by their process names.
  • the node processor accomplishes process name recognition and provides message acceptance and routing functions.
  • a process table is provided on the side of the servers.
  • a request is issued from a terminal in a small unit called a transaction to a host computer.
  • a transaction executes a processing in accordance with the request in a fixed fashion in a space where the pertinent environment is arranged in advance.
  • the processing is effected in the unit of transaction, namely, in an intermittent manner and in a fixed fashion. Consequently, this system is suitable for use with an automatic banking machine and the like of a bank; however, the transaction processing system is not suitable for an irregular job including various kinds of unfixed data.
  • Fig. 8 regular job requests supplied from a great number of terminals, for example, several thousands in number are processed in a fixed fashion.
  • the host is provided with a data communication program to be effected by a terminal control section and job programs each for achieving a regular or fixed job and an input from a terminal is processed by a job program structured for a fixed purpose.
  • request indications inputted from a relatively small number of terminals i.e. about 100 in number are received in a logical space disposed for each terminal and is subjected to a request analysis, and then a processing program is loaded for execution.
  • a terminal control program there are provided a terminal control program, a request analysis program to analyze requests from the respective terminals, and processing programs corresponding to the respective requests. Since the request analysis program and the processing programs are prepared for each terminal, the TSS is suitable for an irregular job handling various kinds of data.
  • a terminal In the TSS and the transaction processing system, a terminal is assigned to a host computer and cannot be easily allocated to be commonly or randomly shared among a plurality of host systems.
  • the syntactical check may be considered to be achieved in a terminal equipment
  • the request analysis cannot be implemented therein; consequently, there is provided a process (virtual address space) for each terminal to execute programs therein, namely, the request from a terminal is analyzed in the space and the processing environment is established in the same space, thereby executing a processing associated with the request.
  • the TSS is suitable for the irregular job to process various kinds of unfixed data, a large load is imposed on the host, which therefore cannot simultaneously process the requests from many terminals.
  • a terminal is required to be connected to a particular host before starting an interactive processing, which leads to a problem that terminals cannot concurrently and arbitrarily access a plurality of hosts for the services thereof.
  • a user's request issued in an intelligent terminal is analyzed in the work station.
  • the work station recognizes that a particular server process in a particular host is necessary, a connection to the particular objective server process is established by means of a communication between processes.
  • the server process sequentially receives processing requests from the process of the work station thus connected. Since the server process is a process prepared to realize or implement a predetermined kind of request, the processing can be effected without re-establishing the processing environment for each request. Thus, since one server process can receive processing requests from a plurality of terminals the host can assign an address space smaller than the number of the terminals thereby to reduce the address space of hosts.
  • the server process may exist in an arbitrary host, and hence, in the case of a system including a plurality of hosts, the IWS can sequentially issue a request to the server process of each host to interactively perform an operation from the IWS.
  • FIG. 1 there is shown an overall configuration of a distributed interactive processing system which comprises an intelligent work station side 1 and a host computer side 2 connected to each other according to the present invention.
  • Each IWS 1 i includes a plurality of processes 4 i each for processing the user's request and a communication control section 5 for controlling communication lines 3 i .
  • Each host computer comprises a host supervisor (program) providing a communication control space 6 for controlling the communication lines 31, 32, ...
  • the servers 71, 72, ..., 7 l are classified in accordance with the kinds associated with the processing requests from the process 4 i in the IWS 1 i , and a particular request from the process 4 i is executed by a particular server 7 i corresponding thereto.
  • Fig. 2 is a block diagram schematically illustrating processing blocks in the IWS 11 by way of example for IWS.
  • the IWS 11 is connected to a display 8 and a mouse 9 as an input device for specifying a position on the display 8.
  • the end user at the IWS 11 selects by means of the mouse 9 a graphic image called "Icon" displayed on the display device 8 in order to issue a request.
  • the Icon is displayed as a graphic image associated with a name assigned to a resource such as a file, a program, or the like in a meaningful manner, thereby helping the user easily identify the resource.
  • a graphic image or picture illustrating a combination of a report sheet and a table is used as an Icon to represent a file storing data in a table format.
  • the user identifies Icons representing objective files and programs for a desired operation among the Icons displayed on the screen of the IWS 11 and operates the mouse 7 to move the arrow-mark cursor to the pertinent Icon on the screen, thereby effecting an operation to select the Icon.
  • the position select signal is inputted from the mouse 9 to the screen control section 10 of the IWS 11, and then the Icon number is obtained through the steps 42-47 of Fig. 4.
  • the request analyze/status control section 11 receives the Icon number and the operation request. As shown in the steps 51-53 of Fig. 5, the request analyze/status control section 11 checks to determine a location where a processing for the selected Icon is to be effected or can be achieved, namely, based on the Icon number, an Icon attribute table 12 stored and developed in the storage of the IWS 11 in advance is searched for a process name corresponding to the relevant Icon.
  • the request analyze/status control section 11 initiates a process 4 i having the name thus determined (step 53).
  • the initiated process 4 i obtains names of the processing objectives such as a file name and a program name extracted from the Icon attribute table 12. Since the processing objectives are entirely registered to a directory 13 in the IWS 11 in advance, the locations thereof are determined by conducting a retrieval through the directory 13.
  • the name of a processing objective comprises a name in which node names of the directory 13 are linked to each other, and hence the nodes of the relevant directory 13 can be directly traced by use of the name of the processing objective.
  • the directory 13 is configured in a tree structure.
  • an existence location indicating an existence processor name of a processor where the node 13b exists, or a destination processor name (host name) for other than the own processor. Consequently, the process 4 i can determine the destination or mate processor based on the name of the processing objective.
  • the operation flow of the process 4 i is shown in the steps 61-67 of Fig. 6.
  • the existence locations of the processing objectives are in the own IWS 11, the processing request can be accomplished in the IWS 11.
  • the existence locations are in another processor i.e. host, the directory 13 is searched to determine the name of the server 7 i in a host corresponding to the process 4 i in the IWS 11.
  • the process 4 i issues a connection request to the communication control section 5 to establish a connection of IWS 11 to the objective server process 7 i .
  • the communication control section 5 connects the communication line 31 to the destination processor i.e. relevant host computer 2 i . After the connection is completed, the communication control section 5 transfers a connection request buffer 14 to the host 2.
  • the communication control section 5 of the IWS 11 In order to establish a logical communication path between the process 4 i and the server process 7 i to be connected in the host 2 i , the communication control section 5 of the IWS 11 generates a connection request buffer 14 providing information indicative of a logical request for connecting the name of the process 4 i and the name of the destination server process 7 i , into a virtual memory of IWS 11.
  • a connection request buffer 14 providing information indicative of a logical request for connecting the name of the process 4 i and the name of the destination server process 7 i , into a virtual memory of IWS 11.
  • the contents of request buffer area 14 are transferred to the communication control space 6 including a local supervisor program of the host 2 i via the communication line 31 connecting the IWS 11 to the host 2 i .
  • the communication control space 6 has a function to accept a connection request and a processing request sent from the respective IWS 11 and to distribute the received requests to the corresponding ones of the server processes 71, 72, 73, ....
  • Fig. 3 the configuration and operation of the host 21 will be described, by way of example.
  • the host 21 includes the communication control space 6 for receiving the connection and processing requests from the IWS 11 and for transferring the received requests to a relevant server 7 i .
  • Information received via the communication line 31 is stored in a buffer (area) existing in a virtual storage of the communication control space 6.
  • the information sent from the IWS 11 includes the name of the process 4 i as the source and the name of the server process 7 i as the destination.
  • information indicating the content of the request is also included in the sent information.
  • the communication control space 6 obtains the name of the server process 7 i in the host for which the communication path is to be established by use of the information received via the communication line 31.
  • the server process 7 i is a process to implement a function on a particular operation objective contained in the request issued from the IWS 11 to the host 21.
  • the mail server accomplishes a function in the case where the operation objective is an electronic mail, namely, conducts the retrieval, distribution, and reception of the electronic mail.
  • the multi-media document server to store, to retrieve, and to extract the multi-media document;
  • the print server to edit and to print the multi-media;
  • the data base server to retrieve, to store, and to extract the data base.
  • the server process 7 i conducts an initial report to the communication control space 6.
  • the communication control space 6 registers to a process name table 15 the name of the server process 7 i received through the initiation report and the identifier of the space of the server process 7 i .
  • the communication control space 6 When a request to establish a logical communication path is received from the IWS 11, the communication control space 6 effects a retrieval on the process name table 15 by use of the server process name in the information transmitted together with the request and obtains the space of the server process 7 i .
  • a task called the communication control section 6a is beforehand initiated at the initiation report of the server process 7 i and is waiting for a report from the communication control space 6.
  • the communication control space 6 transmits the report to the communication control section 6a in the server process 7 i by means of an interspace communication function (cross-memory post).
  • the communication control section 6a On receiving the report from the communication control space 6, the communication control section 6a receives from the communication control space 6 the data indicating the request to establish a logical communication path, the data being transferred via an area of the virtual storage to be commonly used by the respective spaces 6 and 7 i . In the case where the request to open the logical communication path is to be accepted, an acknowledge answer is returned to the communication control space 6. The acknowledge answer is reported by use of a cross-memory post generated in a buffer of the common virtual storage.
  • the communication control space 6 passes the acknowledge answer via the communication line 31 to the communication control section 5 of the IWS 11.
  • the communication control section 5 notifies the process 4 i from which the request has been issued that the logical communication path has been established.
  • the process 4 i in the IWS 11 establishes the logical communication path to the server 7 i in the objective host 21.
  • the identification number of the logical communication path is transferred to the process 4 i in the IWS 11 and the server 7 i in the host 21.
  • the process 4 i in the IWS 11 is enabled to freely communicate with the server 7 i , and then like in the TSS, the server 7 i in the host 21 executes a processing for the function requested to the host 21.
  • the process 4 i generates request information in the virtual storage of the IWS 11, specifies the identification number of the logical communication path, and notifies the information to the communication control section 5.
  • the communication control section 5 transmits the information to the communication control space 6 in the host 21 via the communication line 31. Based on the identifier of the logical communication path, the information is recognized to be destined to the server 7 i ; consequently, the information is delivered to the server 7 i .
  • the server 7 i is a server for handling a particular operation objective, for example, a mail server for the electronic mail or the multi-media document server for the multi-media document.
  • Fig. 7 shows the general configuration of the server 7 i , which comprises a communication accept section 6a for receiving data from the communication space 6, a server control task 7a for conducting analysis of the content of data transferred, and a plurality of request processing tasks 7b for implementing the functions of the requests.
  • the server task 7a issues a connect request to the communication control space 6 at the initiation, and as a result of the request, the communication accept section 6a is generated as a task.
  • the server control task 7a then allocates the necessary files, opens the files, and waits for a request sent from the IWS side 1.
  • the server 7 i On receiving a processing request after the logical communication path to for example, the IWS 11 is opened, the server 7 i analyzes the request by use of the server control task 7a. As a result, if the pertinent request processing task 7b has already been assigned, the server 7 i passes the request to the request processing task 7b; otherwise, the server 7 i selects a free task 7b and assignes the request to the task 7b.
  • the request processing task 7b effects the processing in accordance with the content of the request from the IWS 11.
  • the processing result is returned to the process 4 i in the IWS 11 by means of the same logical communication path 31.
  • the server 7 i is a processing space in which the environment is arranged to meet the particular processing request (i.e. the file allocation and the OPEN processing of the files have been completed).
  • each server 7 i can effect a processing execution only for a particular processing request, a plurality of requests can be received, namely, the requests from many IWS's can be simultaneously processed with respect to the space by use of, for example, the technology of the time slicing.
  • the analyze/status control section 11 in the IWS 11 initiates a process corresponding to a new Icon and then a connection to a new server in the host 21 is established in accordance with the IWS-host connect procedure.
  • This connection is independent of the previous connection, namely, the previous connection may be retained to be used again when necessary. If such a connection is unnecessary, the connection is released as soon as possible. If necessary, a plurality of requests may be concurrently issued by use of two connections at the same time so as to be processed concurrently.
  • An electronic mail is received (by the electronic mail server), the electronic mail is stored in an electronic cabinet (multi-media document store file) by means of the multi-media document server, and the document is printed by use of the print server.
  • an electronic cabinet multi-media document store file
  • This sequence of processing is implemented as follows.
  • the electronic server is connected to the IWS 1, a request is issued to the electronic mail server to achieve the "electronic mail receive" function.
  • the multi-media server is connected and a request is made to the multi-media server to conduct the "store” function, and finally, the print server is connected and then a request is issued thereto to effect the "print” function.
  • the server since the user's request is analyzed in the IWS 1 and the processing environments (allocation and OPEN processing of files, development of tables in the memory, etc.) need not be set in each server of the host, and the server processes requests from a plurality of IWS's, which enables the number of server spaces to be limited, the load on the host can be reduced. Consequently, the number of IWS's to be connected to the host can be increased by the magnitude on the order of ten as compared with that of the prior art TSS.
  • the server satisfying the processing request need not be necessarily allocated to a particular host, namely, data such as documents and tables of each host can be freely and in the same procedure accessed through the server of the common kind disposed in each host.
  • IWS's 1 are located on a plurality of terminal sides like in the on-line system to effect on the terminal sides the analysis of the request input from the terminal user, and on the host side, there are provided a communication program for conducting communications with the programs (processes) on the IWS 1 side and various servers each having a single function; consequently, processing requested from the plural IWS's can be collectively or concurrently be accomplished.
  • the programs (processes) on the IWS 1 side and various servers each having a single function consequently, processing requested from the plural IWS's can be collectively or concurrently be accomplished.
  • the range of the job may be limited depending on the kinds of servers.
  • the host can dedicatedly effect the server processing.

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Claims (9)

  1. Verfahren zur verteilten, interaktiven Verarbeitung in einem zusammengesetzten Computersystem (Fig. 1), das zumindest eine Arbeitsstation (1) aufweist, einen Verarbeitungscomputer (2), der eine Gruppe von Servervorgängen (7₁ - 7l) unterstützt, Verbindungsleitungen (3₁ - 3n), die zwischen die zumindest eine Arbeitsstation und den zumindest einen Verarbeitungscomputer geschaltet sind, und eine Steuerungseinrichtung (5, 6) in jeder Arbeitsstation und in jedem Verarbeitungscomputer zur Steuerung der Verbindungsleitungen, um die Verbindungen zwischen der zumindest einen Arbeitsstation und dem zumindest einen Verarbeitungscomputer zu ermöglichen, mit den Schritten:
    - Analysieren einer in die Arbeitsstation eingegebenen Benützeranfordnung in der Arbeitsstation, um eine spezifische Verarbeitung durchzuführen und um in der Arbeitsstation einen Vorgang (4i) entsprechend der Anforderung zu beginnen (Fig. 4, 42-47, Fig. 5, 51-53), wobei die Benützeranforderung nicht ausdrücklich anzeigt, ob die spezifische Verarbeitung die Ausführung eines der Servervorgänge im Verarbeitungscomputer benötigt,
    - Verwendung vorweg gespeicherter Daten (13) zur Identifizierung des Orts einer Verarbeitungseinrichtung, die für die spezifische Verarbeitung benötigt wird (Fig. 6, 61-63);
    und
    - vollständiges Ausführen der spezifischen Verarbeitung innerhalb der Arbeitsstation (Fig. 6, 64-65), wenn sich die Verarbeitungseinrichtung in der Arbeitsstation befindet,
    und
    - Senden einer Vorgangsanforderungsinformation an den Verarbeitungscomputer (Fig. 6, 66-67), wenn sich die Verarbeitungseinrichtung im Verarbeitungscomputer befindet, wobei die Information den Namen eines Servervorgangs umfaßt;
    - wobei der Verarbeitungscomputer auf die von der Arbeitsstation kommende Vorgangsanforderungsinformation antwortet, indem entsprechend dem Namen des Servervorgangs die angeforderte Verarbeitung in einem Servervorgang ausgeführt wird und das Ergebnis der Verarbeitung an den Vorgang innerhalb der Arbeitsstation zurückgegeben wird.
  2. Verfahren nach Anspruch 1, wobei
    jede der Arbeitsstationen (1₁, 1₂, ...1n) eine Funktion zur Ausführung eines Servervorgangs (4i) auf einem vergleichsweise niedrigem Niveau aufweist,
    und
    jeder der Verarbeitungscomputer (2₁, 2₂, ...2m) eine Funktion zur Ausführung eines Servervorgangs (7i) auf einem vergleichsweise hohen Niveau aufweist.
  3. Verfahren nach Anspruch 1, wobei
    jede der Arbeitsstationen (1₁, 1₂, ...1n) einen auf eine Eingabe einer Verarbeitungsanforderung ansprechenden Schritt zum Analysieren der Verarbeitungsanforderung und zur Bestimmung des Aufenthaltsortes, wo ein Programm entsprechend der Verarbeitungsanfrage existiert (Fig. 5), aufweist.
  4. Verfahren nach Anspruch 3, wobei
    der Schritt des Analysierens der Anforderung (Fig. 5) einen Unterschritt aufweist, der dann auszuführen ist, wenn in der Arbeitsstation (1₁, 1₂, ...1n) ein Zustand erfaßt wird, daß ein bestimmter Servervorgang (7₁, 7₂, ...7l) eines bestimmten Verarbeitungscomputers (2₁, 2₂, ...2m) notwendig ist, um der Steuerungseinrichtung (5, 6) einen Namen eines Verarbeitungszielvorgangs zuzuführen und
    die Steuerungseinrichtung (5, 6) den bestimmten Servervorgang (7₁, 7₂, ...7l) des Verarbeitungscomputers (2₁, 2₂, ...2m) entsprechend dem Namen des Empfangsverarbeitungszielvorgangs mit der Arbeitsstation (1₁, 1₂, ...1n) verbindet, wodurch der Empfang der von einem Vorgang in der Arbeitsstation (1₁, 1₂, ...1n) ausgegebenen Verarbeitungsanforderung durch den Servervorgang (7₁, 7₂, ...7l) ermöglicht wird.
  5. Verfahren nach Anspruch 4, wobei
    der Servervorgang (7₁, 7₂, ...7l) Vorgänge (7b) umfaßt, die jeweils zur Verarbeitung einer bestimmten Art von Anforderung erzeugt wurden.
  6. Verfahren nach Anspruch 3, wobei
    der Schritt des Analysierens einer Anforderung (Fig. 5) folgende Unterschritte enthält:
    - Ermitteln eines Vorgangsnamens bezugnehmend auf eine Tabelle 12, die Vorgangsnamen von Vorgängen (7₁, 7₂, ...7l) enthält, von denen jeder eine einzugebende Anforderung (61) umsetzt;
    - Gewinnen eines Namens eines Verarbeitungsziels durch Ausführen des ermittelten Prozesses (62)
    und
    - Bestimmen eines Aufenthaltsorts des Verarbeitungsziels bezugnehmend auf ein Verzeichnis (13, 63), das in der zumindest einen Arbeitsstation (1₁, 1₂, ...1n) vorgesehen ist.
  7. Zusammengesetztes Computersystem für die verteilte, interaktive Verarbeitung mittels Durchführung eines Verfahrens nach einem der Ansprüche 1 bis 6,
    mit zumindest einer Arbeitsstation (1i), zumindest einem Verarbeitungscomputer (2i), der eine Gruppe von Servervorgängen (7₁ - 7l) unterstützt, Verbindungsleitungen (3₁ - 3n), die zwischen die zumindest eine Arbeitsstation (1) und den zumindest einen Verarbeitungscomputer (2) geschaltet sind, und einer Steuerungseinrichtung (5, 6), die die Verbindungsleitungen (3₁, 3n) steuern, um die Verbindung zwischen der zumindest einen Arbeitsstation (1i) und dem zumindest einen Verarbeitungscomputer (2i) zu ermöglichen,
    wobei jede Arbeitsstation (1i) aufweist:
    - eine Eingabeeinrichtung (8 - 10) zum Empfangen von Verarbeitungsanforderungen von einem Anwender;
    - eine Vorgangsnamentabelle (12), in der Namen von Vorgängen für die jeweilige Umsetzung von Verarbeitungen für die verschiedenen Verarbeitungsanforderungen gespeichert sind;
    - eine Einrichtung (11), die auf die Verarbeitungsanforderungen anspricht, um einen entsprechenden Vorgangsnamen in der Vorgangsnamentabelle (12) zu bestimmen und um einen Vorgang, der diesen Vorgangsnamen hat, zu beginnen,
    - ein Verzeichnis (13), in dem vorweg die Aufenthaltsorte von Verarbeitungszielen entsprechend den Namen der Verarbeitungsziele einschließlich eines Dateinamens und eines Programmnamens gespeichert werden,
    - eine Analysiereinrichtung (4₁, 4₂, ...4n), um in der Arbeitsstation (1i) eine in der Arbeitsstation (1i) eingegebene Benutzeranforderung zu analysieren, um eine spezifische Verarbeitung durchzuführen und um einen Vorgang entsprechend der Anforderung in der Arbeitsstation (1i) zu beginnen, wobei die Benutzeranforderung nicht explizit angibt, ob die spezifische Verarbeitung die Ausführung eines der Servervorgänge (Fig. 6, 61-63) im Verarbeitungscomputer (2i) unter Verwendung der vorab gespeicherten Daten (13) zur Identifizierung des Orts einer durch die spezifische Verarbeitung (Fig. 6, 64-65) benötigten Verarbeitungseinrichtung benötigt;
    und
    - eine sich in der Arbeitsstation (1i) befindende Verarbeitungseinrichtung zur Beendigung der spezifischen Verarbeitung innerhalb der Arbeitsstation und
    - eine sich in der Arbeitsstation (1i) befindende Verarbeitungseinrichtung zum Senden einer Vorgangsanforderungsinformation an den Verarbeitungscomputer (2i), wobei die Information einen Servervorgangsnamen umfaßt,
    wobei der Verarbeitungscomputer (2i) auf die von der Arbeitsstation (1i) kommende Prozeßanforderungsinformation reagiert, indem die angeforderte Verarbeitung in einem dem Servervorgangsnamen entsprechenden Servervorgang ausgeführt wird und das Ergebnis der Verarbeitung an den Vorgang in der Arbeitsstation (1i) zurückgegeben wird.
  8. System nach Anspruch 7, bei dem
    der Verarbeitungscomputer (2i) aufweist
    - eine Verbindungssteuerungseinrichtung (6, 6a) zur Steuerung des Empfangs und des Übertragens von Verbindungsinformation von jeder der Arbeitsstationen (1i), mit
    - einem in einem virtuellen Speicher existierenden Puffer zur Speicherung von von den Verbindungsleitungen (3i) kommenden Informationen, wobei die gespeicherte Information den Vorgangsnamen einer eine Anforderung ausgebenden Quelle aufweist, den Namen eines Servervorgangs als Verbindungszielort sowie eine Information, die den Inhalt der Anforderung angibt, und
    - einer Serverausführungseinrichtung (7₁, 7₂, ...7l), die nach Maßgabe einer Angabeinformation aus der Verbindungssteuerungseinrichtung (6, 6a) arbeitet, zur Ausführung des Servervorgangs, der einen Vorgang zur Umsetzung einer Funktion für ein bestimmtes Vorgangsziel darstellt.
  9. System nach Anspruch 8, wobei
    der Verarbeitungscomputer (2i) eine Namenstabelle (15) aufweist, in der Namen von Servervorgängen und Identifizierer von mit den jeweiligen Servervorgängen verknüpften Räumen gespeichert sind,
    wobei die Servervorgangsausführungseinrichtung (7₁, 7₂, ...7l) einen Verbindungsannahmeabschnitt (6a) aufweist zum Empfangen von Information eines entsprechenden Serverraums, die durch die Verbindungssteuerungseinrichtung (6, 6a) des Host-Computers durch Bezugnahme auf die Vorgangsnamentabelle (15) nach Maßgabe der Information aus der Arbeitsstation (1i) ermittelt wird, und
    wobei
    der Verbindungsannahmeabschnitt (6a) eine Verbindung zwischen dem Vorgang in der Arbeitsstation (1i) und dem Server im Verarbeitungscomputer (2i) aufbaut, wenn eine Bestätigungsantwort auszugeben ist, wodurch der Server in die Lage versetzt wird, eine Annahmeverarbeitung der Verarbeitungsanforderung des besonderen Vorgangs durchzuführen.
EP87107964A 1986-06-02 1987-06-02 Verteiltes Dialogverarbeitungsverfahren in einem komplexen System mit mehreren Arbeitsplätzen und mehreren Gastrechnern und Vorrichtung dafür Expired - Lifetime EP0248403B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP61125726A JP2585535B2 (ja) 1986-06-02 1986-06-02 複合計算機システムにおけるプロセス結合方法
JP125726/86 1986-06-02

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EP0248403A2 EP0248403A2 (de) 1987-12-09
EP0248403A3 EP0248403A3 (en) 1990-01-24
EP0248403B1 true EP0248403B1 (de) 1994-04-13

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US4937784A (en) 1990-06-26
EP0248403A3 (en) 1990-01-24
DE3789575D1 (de) 1994-05-19
DE3789575T2 (de) 1994-07-28
JP2585535B2 (ja) 1997-02-26
EP0248403A2 (de) 1987-12-09
JPS62284455A (ja) 1987-12-10

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